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  Indian J Med Microbiol
 

Table 5: Percentage and frequency distribution of ABO blood group with mild (Grade 0 and Grade I) and moderate to severe periodontal involvement (Grades II, III, and IV combined)

Table 5: Percentage and frequency distribution of ABO blood group with mild (Grade 0 and Grade I) and moderate to severe periodontal involvement (Grades II, III, and IV combined)